Like what?

So much nonsense being written here and in other forums. The situation is like this:
On a PS4 developer unit, you have 8G of ram divided into (numbers heavily rounded):
1G os
1.5G debug software
1G debug scratchpad
4.5G game (or 5.5G if using the debug scratchpad)
On a PS4 end user unit, you have:
1G os
5.5G game
1.5G unclear space (now os scratchpad space?) as there very likely isn't any debug software loaded
So on a PS4 end user unit, the ram limit is >= 5.5G for the game

Nope, I think they're were just lying, AS USUAL. And typically tellying the fanboys what they what to hear - 7GB RAM for games lol,...what a load of BS. And I would bet that this is only the begining of such annouments to leak out about the PS4.

I already thought that this feature that lets you share streams even from some time ago of your gameplay must be a hard hit on memory, but I thought probably Sony reserved enough harddisk to save it there. Seems it is more used for memory. Maybe the sharing-feature is deactivated or restricted if the game uses the extra gig.

What? More ram is always way more important than speed. Always. And os-speed in correlation with the speed of ram? Wow, there is lack of knowledge. No offense but really this only shows more believe than knowledge. I know you won't listen to me because you think I am biased but believe me in technical terms I am definitely not.

Well I think we can all agree with

GDDR5> DDR3

End of discussion =)

Simple answer: they don't.

There will be no multi-tasking between games. Multi-tasking with OS was even available in the Wii/PS3-gen. So it means OS has features, that use the RAM. The video-sharing-feature might be a good explanation.

In certain cases, I agree.

Something that would hurt Sony hard. Where this would get people who got a PS4 to switch. But this isn't something that would persuade someone to switch.